The Principal cytochrome P450 isoenzyme concerned seems to generally be CYP2E1, with CYP1A2 and CYP3A4 as extra pathways. Close to 85% of an oral dose appears while in the urine within 24 hours of administration, most given that the glucuronide conjugate, with small amounts of other conjugates and unchanged drug. https://codeine.store/product/capital-wcodeine/